As my hobby was building model boats I thought I would join this forum, I scratched built my models some I designed myself and some I built from plans, mainly cabin cruisers, and tug boats, using electric power and IC engines, I had a Gannet 15cc petrol engine which was a fine engine.
I modelled in wood, and also fibre glass
Although I don't build model boats now I may be of some help for some questions that may come up on the Forum.